Climate almanac
Mahdishahr
Semnan, Iran · 35.71°, 53.35°
What is the climate like in Mahdishahr?
The best time to visit Mahdishahr is typically June – October, with trip comfort peaking in August (8.8/10). Mahdishahr is warmest in July, when daily highs average 83°F (28°C), and coolest in January, when lows fall to about 24°F (-4°C). The wettest month is typically May and the driest is August; the year sees roughly 17 in (422 mm) of precipitation.
- Best time to visitJune – October — comfort peaks in August (8.8/10)
- Warmest monthJuly — average high 83°F (28°C)
- Coolest monthJanuary — average low 24°F (-4°C)
- Wettest monthMay (2.6 in (66 mm))
- Driest monthAugust (0.7 in (17 mm))
- Annual precipitation17 in (422 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromSemnan, 18 km away (1973-2025)